/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraSystemViewModel.h
Gets an emitter handle view model by ID. Returns an invalid shared ptr if it can't be found.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FNiagaraEmitterHandleViewModel](API\Plugins\NiagaraEditor\ViewModels\FNiagaraEmitterHandleViewModel) > GetEmitterHandleViewModelById ( [FGuid](API\Runtime\Core\Misc\FGuid) InEmitterHandleId )